earg-raye



(No Model.) 2 Sheets-Sheet 1. E. G. HARGRAVE. WATER DISTILLING APPARATUS.

No, 552,835, Patented Jan. 1896.

(No Model.) 2 Sheets-Sheet 2. E. C. HARGRAVE. WATER DISTILLING APPARATUS.

No. 552,835. Patented Jan. 7, 1896.

rricn,

UNITED STATES j PATENT EDVARD C. IIARGRAVE, OFBAY CITY, MICHIGAN, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO ELSHA P. GROXV AND JAMES E. THOMAS, OF SAME PLACE.

WATER-'DISTILLlNG APPARATUS.

SPECIFICATION forming part of Letters Patent No. 552,835, dated January '7, 1896.

Application filed February 19,1891. Renewed lune 10, 1895. Serial No. 55h-,347. {No model Patented in Canada September To all whom t may concern: suitable opening i for communication with 5o Beit known that I, EDWARD C. HARGRAVE, the surrounding atmosphere. a citizen of the United States, residing at Bay j is a pipe With one end connected with the City, in the county of Bay and State of Michichamber 71, While the opposite end enters the gan, have invented certain new and usefuli chamber b, and j is a valve for said pipe.

improvements in Vater-IMStilling Appara The upper portion of the inner Walls of the 55 tus, (for Which l have obtained a Canadian chamber Z) is provided with an annular shelf patent, No. Z7,035), dated September 13, lSJJq) or drip-trough it, and through the Wall of the and 1 do declare the following to be a full, chamber is passed one end of a pipe Z, and is Io clear, and exact description of the invention, also connected with the drip-trough k, so as such as will enable others skilled in the art to receive the contents thereof, and the por- 6o to which it appertains to make and use the tion of this pipe outside of the chamber first same, reference being had to the accompanybeing surrounded by a large pipe m, so as to ing drawings, and to the letters ot' reference leave an annular space h between the inner marked thereon, which forni a' part of this and outer pipe, is extended to a considerable specification. length horizontally by coils or bends, and is 65 The object of my invention is to provide a then connected by its opposite end to the upnieans whereby Water for domestic and other per portion of a storage-tank n, which is of a uses can be cheaply and efficiently puriiied suitable size and is provided with an upzo from all vegetable and mineral matter in 'sus- Wardly-extending air-pipe o, Which, reaching pension or solution, and also from all volaabove the pipe m, has its upper end reversed 7o tile ingredients, disease germs, bacteria, dro. Vor turned downwardly, and is provided with a JAnother object of my invention is to procovering p, consisting of fibrous material, as vide Waterfor domestic and similar uses that cloth, lint, or Wool secured in position over 2 5 is pure and free from all matter deleterious the end opening.

to health; and the invention consists in the q is a Water-pipe leadingl from a pump or 75 combination, arrangement, and construction other suitable source for supplying cold vra.- of the several devices and parts of the apter, and is connected to the end of the pipe lm, paratus, as will be hereinafter de tinitely exin proximity to the storage-tank, While from 3o plained, and also specifically pointed out in the opposite end of the pipe m a pipe r is the .claims'o this specication. led to the lower portion of the annular Water 8o illy invention is'illustrated in the accomspace or chamber d, to the apex or upper panying drawings, in Whichportion of which a Waste-pipe s is connected,

Figure l is a side elevation,- partly in verand Whichmay be led to the pumps feeding tical section, of my improved Water distilling the boiler or to any other desired point.

and aerating apparatus. Fig. 2 is a plan view In carrying out my process with this appa- S 5 of the same. ratus, cold VWater is forced from a pump or a represents a steam-boiler of any desired other means through the pipe q into the pipe form. in, thence through the pipe fr and chamber d 4o l) is an evaporating-chamber provided on out through the Waste-pipe s, which operates its upper side with a roof c of conical form, to cool the pipe Z and the roof c of the cham- 9o and above the roof c is arranged an annular ber b. Tater in the boiler a is converted into Watenspace d. steam, which passes from the boiler under e is a steam-pipe leading from the boiler u pressure through the pipe e and coils f to the into the lower portion of the chambe1b,where chamber h, leaving behind in. the boiler a all being provided with coils f Within the chamvegeta-ble and mineral impurities, and the ber it is again led through the casing g, which steam in contact With cool surfaces is parincloses the chamber, and thence to a contially condensed, and on reaching the chamdensing-chamber h, which is provided with a ber h the uncondensed portion of the steam passes out through the opening fi, carrying along a large portion of the volatile gases and impurities, while the water formed by the condensation drops to the bottom of the chamber freed from all mineral and vegetable ingredients, and also freed from the most volatile and gaseous of its former composition. This water then passes by means of the pipey to the evaporating-chamber l), which is closed against the entrance or exit of air, where, by means of the heat radiating from the coils f, it is again converted into steam, which rising and coming in contact with the cold surface of the roof c is again condensed, and the water thus formed follows the slope of the roof and is caught by the driptrough k and conducted by the pipe Z through the water contained in the pipe m and thereby is gradually brought to a cold state and deposr ited in the storage-tank n, thoroughly freed fromv all impurities of a solid or volatile nature held in solution or suspension and also deprived from the usual excess of oxygen or common air, and which is necessary to improve the taste and render the water agreeable for drinkingpurposes and domestic use.

It will be seen that by this apparatus the operation of the double distillation is rendered inexpensive, the only fuel required being that to first raise the temperature of the water sufiiciently to produce a sul'iicient amount of steam for condensation, so as to provide the requisite amount of water while a portion thereof passes away in vapor. It will be also noticed that while the first part of the process is carried on with the steam and condensation thereof free to the open atmosphere the latter part of the process is operated entirely within closed chambers and pipes, except where vent is provided through lint or other fibrous 1naterial, so that no absorption of dirt, dust or other deleterious matter can obtain, while the water of condensation passing from the con (lensing-chamber directly through pipes that are exposed to contact with surfaces that grow gradually cooler till thoroughly cold places the water in the mostfavorable condition for aeriiication and in condition to absorb the greatest amount of air which water is capable of retaining.

I am aware that it is not entirely necessary to redistill the water, as with the first distillation all vegetable and mineral ingredients are left behind and the uncondensed vapor; but as the condensing-chamber 'a is open to the atmosphere to permit the escape of the volatile gases the second distillation within the closed chamber Z) removes any deleterious matter that may remain in the Water or be caught up within the chamber n, all foreign matters remaining in the evaporating portion of the chamber l), so that only pure Water which is entirely deprived of its atmosphere is carried to the storage-tank ready for aeration.

Having described the construction and opw eration of my improvement, what I claim as new, and desire to secure by Letters Patent. 1s-

l. The combination with the steam boiler, of an evaporating vessel provided with a coil which receives the steam from the boiler and in which said steam is condensed, a tank open to the atmosphere which receives this distillate and from which the distillate is delivered into the evaporating vessel, and a condenser connected to said evaporating vessel,whereby the distillate of the rst distillation is evaporated. and again condensed.

2. The combination in a distilling apparatus, of the boiler, a condensing chamber having an opening to the atmosphere and a steam pipe leading from theboiler to the condensing chamber, and provided with a series of coils or bends, with a closed evaporating chamber, inclosing the said coils or bends of the steam pipe, and provided with a conical roof having its outer surface covered with a water space and provided at the base of thc inner side of the roof with an annular drip trough, a pipe passing through the walls of the chamber and connected to the drip-trough, and a pipe for conducting water from the condensing chamber to the said evaporatiug chamber substantially as set forth.

3. In a water distilling apparatus, the combination with the boiler, a condensing chamber open to the atmosphere, a closed evaporating chamber having in its upperportion a condensing surface surrounded by a cold water chamber, a pipe for carrying off the water of condensation, a steam pipe leading from said boiler to the evaporating chamber and from there to the condensing chamber and coiled within the evaporating chamber and a pipe leading from the condensing chamber to the evaporating chamber for iilling the latter, and provided with a valve, all substantially as set forth.

In testimony whereof I affix my signature in presence of two witnesses.

EDVARD C. HARGRAVE.

lVitnesses:

G. P. THOMAS, JAS. E. THOMAS.

IOO 

